#region The MIT License
// The MIT License
// 
// Copyright (c) 2009 octalforty studios
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#endregion
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.Diagnostics;
using System.IO;

namespace octalforty.Componento.ComponentModel.Installation
{
    /// <summary>
    /// Standard implementation of the <see cref="IPackageInstallerService"/>.
    /// </summary>
    [Export(typeof(IPackageInstallerService))]
    public class PackageInstallerService : IPackageInstallerService
    {
        #region Private Fields
        private IResourceProviderResolverService resourceProviderResolver;
        private IManifestProviderResolverService manifestProviderResolver;
        private IResourceInstallerResolverService resourceInstallerResolver;
        #endregion

        #region Public Properties
        /// <summary>
        /// Gets or sets a reference to the <see cref="IResourceProviderResolverService"/>.
        /// </summary>
        [Import()]
        public IResourceProviderResolverService ResourceProviderResolver
        {
            [DebuggerStepThrough]
            get { return resourceProviderResolver; }
            [DebuggerStepThrough]
            set { resourceProviderResolver = value; }
        }

        /// <summary>
        /// Gets or sets a reference to the <see cref="IManifestProviderResolverService"/>.
        /// </summary>
        [Import()]
        public IManifestProviderResolverService ManifestProviderResolver
        {
            [DebuggerStepThrough]
            get { return manifestProviderResolver; }
            [DebuggerStepThrough]
            set { manifestProviderResolver = value; }
        }

        [Import()]
        public IResourceInstallerResolverService ResourceInstallerResolver
        {
            [DebuggerStepThrough]
            get { return resourceInstallerResolver; }
            [DebuggerStepThrough]
            set { resourceInstallerResolver = value; }
        }
        #endregion
        
        #region IPackageInstallerService Members
        /// <summary>
        /// Installs package <paramref name="packageName"/> from <paramref name="uri"/>.
        /// </summary>
        /// <param name="packageName"></param>
        /// <param name="uri"></param>
        public void Install(string packageName, Uri uri)
        {
            IManifestProvider manifestProvider = ManifestProviderResolver.ResolveManifestProvider(uri);
            Manifest manifest = manifestProvider.GetManifest(uri, packageName, null);

            if(manifest == null)
                return;

            List<Uri> resources = new List<Uri>();
            foreach(Uri resourceUri in manifest.Resources)
            {
                IResourceProvider resourceProvider = ResourceProviderResolver.ResolveResourceProvider(resourceUri);
                resources.AddRange(resourceProvider.GetResources(resourceUri, packageName, null));
            } // foreach

            foreach(Uri resourceUri in resources)
            {
                IResourceInstaller resourceInstaller = ResourceInstallerResolver.ResolveResourceInstaller(resourceUri);
                
                string destinationPath = Path.Combine(Directory.GetCurrentDirectory(), packageName);
                if(!Directory.Exists(destinationPath))
                    Directory.CreateDirectory(destinationPath);
                
                resourceInstaller.InstallResource(resourceUri, destinationPath);
            } // foreach
        }
        #endregion
    }
}
